Just made the first trip with our QS10.0 and a 2013 highlander Hybrid. Drive about 300 miles yesterday across the Cascade Mountains to southern BC. I hardly knew the trailer was behind me, except for the stuff cross winds heading north along the Columbia river. We managed just shy of 21 MPG, however, the last 100 miles or so was into a stiff 20-30 MPH headwind. In the first 60 miles or so we averaged 22.8 MPG which was more in line with my expectations!
7 more nights and a few hundred miles to go...